Taguchi analysis of heat treatment variables on the mechanical behavior of alumina/aluminum metal matrix composites

Composites Engineering Pub Date : 1995-01-01 DOI:10.1016/0961-9526(95)90709-K

G. Leisk, A. Saigal

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引用次数: 13

Abstract

Alumina-reinforced aluminum 6061 alloy composites containing 10, 15 and 20 volume percentage particulates were tested using the standard tensile and Charpy impact toughness tests. A statistical approach, known as the Taguchi method, was implemented to identify heat treatment conditions for improved tensile and impact toughness properties. Modulus of elasticity, yield strength, and ultimate tensile strength all increased while impact toughness decreased as a function of the volume percentage of reinforcement for the alumina/aluminum composites in the T6 heat treated condition. Taguchi analysis results indicate that, on average, a 4% increase in yield strength and a 7% increase in ultimate tensile strength over the standard T6 heat treatment can be attained using a heat treatment of 6 h of solutionizing at 529°C and 12–18 h of aging at 160°C. Similarly, using a heat treatment of 2 h of solutionizing at 529°C and 12 h of aging at 127°C results in an impact toughness improvement of more than 87% over the standard T6 heat treatment.

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热处理变量对氧化铝/铝金属基复合材料力学行为的影响

采用标准拉伸和夏比冲击韧性试验对含体积百分比为10、15和20的铝增强铝6061合金复合材料进行了测试。采用统计学方法，即田口法，确定了提高拉伸和冲击韧性的热处理条件。在T6热处理条件下，氧化铝/铝复合材料的弹性模量、屈服强度和极限抗拉强度随增强体体积百分比的增加而增加，而冲击韧性随增强体体积百分比的增加而降低。田口分析结果表明，在529℃固溶6 h、160℃时效12-18 h的条件下，与标准T6热处理相比，屈服强度平均提高4%，极限抗拉强度平均提高7%。同样，在529℃下进行2小时固溶，在127℃下进行12小时时效处理，其冲击韧性比标准T6热处理提高87%以上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Composites Engineering

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